low-pass filter (LPF)

band-pass filter / bandpass filter (BPF)

dust filter / dust shield, particle filter

dust shield / dust filter, particle filter

filter housing / filter unit

filter unit / filter housing

particle filter / dust shield, dust filter

finite impulse response filter (FIR-filter)

passband filter; bandpass filter (BPF)

low-RCS target / low-radar-cross-section target

low flying aircraft / low-flying aircraft

low-flying, low-speed drone

liberty pass

pass over a waypoint

blind pass

by-pass flow

by-pass gas turbine engine

by-pass turbojet engine

by-pass taxiway

absence pursuant to a pass

identification and pass system

safe conduct amnesty pass

safe сonduct (pass)

continue to pass instructions

firing pass

single pass system

single-pass satellite

pass the initiative to the enemy

be on the pass

pass an obstacle

pass around the enemy's main force

pass bonus

pass down the line